Re: marine reptile McMenu

[David Marjanovic <david.marjanovic@gmx.at>]

> "[...] Krill have no fossil record, so very little is known about their 
> palaeobiology. The timing of past speciation events
> in krill was estimated by comparing change in their 28s rDNA to change in 
> the 28s rDNA of their close relatives
> that do have a fossil record. [...]"

Ah. Using only external calibration points leads to too old divergence date 
estimates.